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A MELSEC-Q Series MELSECNET/H Unit

A MELSEC-Q Series MELSECNET/H Unit
  • On Sale Till 30/06/2026

MITSUBISHI

MITSUBISHI

MELSECNET/H network unit.
[Features]
· A large-scale and flexible network system can be configured.
· Includes a remote I/O network for communication between PCs and between remote stations.
· Optical loop system, coaxial bus system and twist bus system.
[Applications]
· For connections with field networks.

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MELSECNET/H Network Unit Features

The MELSECNET/H network unit lets you build a large-scale, flexible network system.
A MELSECNET/H network system may be a PC-PC network for communication between an administration station and a normal station, or a remote I/O network for communication between a remote master station and a remote I/O station.
Optical loop system: High-speed communication at 10 Mbps / 25 Mbps is achieved. To support a long distance between stations / long total distance, the noise resistance is high.
Coaxial bus system: A system can be built with lower cost than what an optical loop system needs because inexpensive coaxial cables are used.
Twist bus system: A low-cost network system can be built by combining affordably-priced network units and twisted paired cables.

MELSECNET/H Network Unit Specifications

ItemSpecifications
Network SystemOptical Loop SystemCoaxial Bus SystemTwist Bus System
Type NameQJ71LP21(S)-25
QJ72LP25-25		QJ71LP21G
QJ72LP25G		QJ71BR11
QJ72BR15		QJ71NT11B
Connection CableOptical Fiber Cable
(SI)		Optical Fiber Cable
(GI)		Coaxial Cable
(3C-2V)		Coaxial Cable
(5C-2V)		Twisted Paired CableCC-Link Dedicated
Ver. 1.10
Supported Cable
Network Between PCsMaximum Link Points
Per Network		LB16,384 points (8,192 points in MELSECNET / 10 mode)16,384 points
LW16,384 points (8,192 points in MELSECNET / 10 mode)16,384 points
LX/LY8,192 points
Maximum Link Points Per Station· MELSECNET/H mode, MELSECNET/10 mode (excluding twisted bus system)
{(LY + LB) / 8 + (2 × LW)} ≤ 2,000 bytes
· MELSECNET/H Expansion Mode
{(LY + LB) / 8 + (2 × LW)} ≤ 35,840 bytes
Number of Connected Stations Per Network64 stations (Administration stations: 1, Normal stations: 63)32 stations (Administration stations: 1, Normal stations: 31)
Remote I/O
Network		Maximum Link Points
Per Network		LB16,384 points
(Remote master station > Remote sub-master station or remote I/O station: 8,192 points,
Remote sub-master station or remote I/O station > Remote master station: 8,192 points)		-
LW16,384 points
(Remote master station > Remote sub-master station or remote I/O station: 8,192 points,
Remote sub-master station or remote I/O station > Remote master station: 8,192 points)
LX/LY8,192 points
Maximum Link Points Per Station· Remote master station > Remote I/O station ((LY + LB) / 8 + (2 × LW)) ≤ 1,600 bytes
· Remote I/O station > Remote master station ([LX + LB] / 8 + [2 × LW]) ≤ 1,600 bytes
· Multiplex remote master station from/to Multiplex remote sub-master station ([LY + LB] / 8 + [2 × LW]) ≤ 2,000 bytes
Maximum Input/Output Points
Per Remote I/O Station		X + Y ≤ 4,096 points
If there is an identical number on X side and Y side, it is counted as a point only on one side.
Number of Device Points
Per Remote I/O Station		M8,192 points
SM2,048 points
D12,288 points
SD2,048 points
Number of Connected Stations Per Network65 stations
(Remote master stations: 1, Remote I/O stations: 64)		33 stations
(Remote master stations: 1, Remote I/O stations: 32)
Communication Speed25 Mbps / 10 Mbps10 Mbps156 Kbps / 312 kbps / 625 kbps / 1.25 Mbps
/ 2.5 Mbps / 5 Mbps / 10 Mbps
Total Extension Distance30 km300 m500 m1,200 m / 156 kbps,
600 m / 312 kbps,
400 m / 625 kbps,
200 m / 1.25 Mbps		1,200 m / 156 kbps,
900 m / 312 kbps,
600 m / 625 kbps,
400 m / 1.25 Mbps,
200 m / 2.5 Mbps,
150 m / 5 Mbps,
100 m / 10 Mbps
Distance Between StationsMaximum 1 km2 km--
30
45
60
  1. 1
Part Number
QJ71BR11
QJ71LP21-25
QJ71LP21G
QJ71LP21S-25
QJ71NT11B
QJ72BR15
QJ72LP25-25
QJ72LP25G
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSType of unit Applicable stations With/without external power provision

MYR 5,351.67

MYR 4,281.34

1 Piece(s) 79 Day(s) 6Coaxial Bus UnitAdministration Station/ Normal Station/ Remote Master StationNA

MYR 5,351.67

MYR 4,281.34

1 Piece(s) 97 Day(s) 6Optic Loop Unit (SI/QSI Cable)Administration Station/ Normal Station/ Remote Master StationNA

MYR 7,848.33

MYR 6,278.66

1 Piece(s) 97 Day(s) 6Optic Loop Unit (GI Cable)Administration Station/ Normal Station/ Remote Master StationNA

MYR 7,848.33

MYR 6,278.66

1 Piece(s) 97 Day(s) 6Optic Loop Unit (SI/QSI Cable)Administration Station/ Normal Station/ Remote Master StationAvailable

MYR 3,570.00

MYR 2,856.00

1 Piece(s) 97 Day(s) -Twist Bus UnitManagement Station/Normal StationNA

MYR 6,421.67

MYR 5,137.34

1 Piece(s) 97 Day(s) -Coaxial Bus UnitRemote I/O stationNA

MYR 7,133.33

MYR 5,706.66

1 Piece(s) 97 Day(s) 6Optic Loop Unit (SI/QSI Cable)Remote I/O stationNA

MYR 8,918.33

MYR 7,134.66

1 Piece(s) 97 Day(s) 6Optic Loop Unit (GI Cable)Remote I/O stationNA

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Specification/Dimensions

  • Type of unit

    • Coaxial Bus Unit
    • Optic Loop Unit (GI Cable)
    • Optic Loop Unit (SI/QSI Cable)
    • Twist Bus Unit

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  • Applicable stations

    • Administration Station/ Normal Station/ Remote Master Station
    • Management Station/Normal Station
    • Remote I/O station

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  • With/without external power provision

    • Available
    • NA

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Days to Ship

    • All
    • 79 Day(s) or Less
    • 97 Day(s) or Less

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